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I recently baught the cd rom version of halflife in five cd's. When I preceeded to install the game during cd 4 it gave me an error of not being able to find an .ico file in cabinet 4 or something to that extent. Can anyone tell me who I should contact or what I could do about this because I can't return this product and I really don't want my fifty dollars to have been in vain. Thanks in advance.